1
2Julian Seward was the original founder, designer and author of
3Valgrind, created the dynamic translation frameworks, wrote Memcheck,
4the 3.X versions of Helgrind, Ptrcheck, DHAT, and did lots of other
5things.
6
7Nicholas Nethercote did the core/tool generalisation, wrote
8Cachegrind and Massif, and tons of other stuff.
9
10Tom Hughes did a vast number of bug fixes, helped out with support for
11more recent Linux/glibc versions, set up the present build system, and has
12helped out with test and build machines.
13
14Jeremy Fitzhardinge wrote Helgrind (in the 2.X line) and totally
15overhauled low-level syscall/signal and address space layout stuff,
16among many other things.
17
18Josef Weidendorfer wrote and maintains Callgrind and the associated
19KCachegrind GUI.
20
21Paul Mackerras did a lot of the initial per-architecture factoring
22that forms the basis of the 3.0 line and was also seen in 2.4.0.
23He also did UCode-based dynamic translation support for PowerPC, and
24created a set of ppc-linux derivatives of the 2.X release line.
25
26Greg Parker wrote the Mac OS X port.
27
28Dirk Mueller contributed the malloc/free mismatch checking
29and other bits and pieces, and acts as our KDE liaison.
30
31Robert Walsh added file descriptor leakage checking, new library
32interception machinery, support for client allocation pools, and minor
33other tweakage.
34
35Bart Van Assche wrote and maintains DRD.
36
37Cerion Armour-Brown worked on PowerPC instruction set support in the
38Vex dynamic-translation framework.  Maynard Johnson improved the
39Power6 support.
40
41Kirill Batuzov and Dmitry Zhurikhin did the NEON instruction set
42support for ARM.  Donna Robinson did the v6 media instruction support.
43
44Donna Robinson created and maintains the very excellent
45http://www.valgrind.org.
46
47Vince Weaver wrote and maintains BBV.
48
49Frederic Gobry helped with autoconf and automake.
50
51Daniel Berlin modified readelf's dwarf2 source line reader, written by Nick
52Clifton, for use in Valgrind.o
53
54Michael Matz and Simon Hausmann modified the GNU binutils demangler(s) for
55use in Valgrind.
56
57David Woodhouse has helped out with test and build machines over the course
58of many releases.
59
60Florian Krohm and Christian Borntraeger wrote and maintain the
61S390X/Linux port.  Florian improved and ruggedised the regression test
62system during 2011.
63
64Philippe Waroquiers wrote and maintains the embedded GDB server.  He
65also made a bunch of performance and memory-reduction fixes across
66diverse parts of the system.
67
68Maynard Johnson contributed IBM Power6 and Power7 support, and generally
69deals with ppc64-linux issues.
70
71Many, many people sent bug reports, patches, and helpful feedback.
72
73Development of Valgrind was supported in part by the Tri-Lab Partners
74(Lawrence Livermore National Laboratory, Los Alamos National
75Laboratory, and Sandia National Laboratories) of the U.S. Department
76of Energy's Advanced Simulation & Computing (ASC) Program.
77